Author:
Chen Chin-Li,Tang Shou-Hung,Wu Sheng-Tang,Meng En,Tsao Chih-Wei,Sun Guang-Huan,Yu Dah-Shyong,Chang Sun-Yran,Cha Tai-Lung
Abstract
Abstract
Background
Angiomyolipomas are benign tumors of the kidney. Typical angiomyolipomas are usually recognized by identifying fat components before any intervention. On the contrary, solid renal masses without evident fatty components but containing calcifications on the computed tomography scan are suspicious for malignancy. However, as in this rare case, rules of diagnostic imaging are of exceptions.
Case presentation
A 40-year-old man presented with left flank pain. The plain X-ray showed multiple coarse calcifications of 4.0 x 3.2 cm in diameter on the left upper quadrant abdomen. Computed tomography scan further revealed a solid renal mass and inside the mass there were calcifications. The size of the tumor was 5.6 × 5.5 × 6.3 cm. We performed a radical nephrectomy, and the histopathology showed a minimally fat-contained angiomyolipoma of multiple calcifications. The patient was free of recurrence or metastases after a follow-up period of 3 years.
Conclusion
An angiomyolipoma containing calcification is rare. An angiomyolipoma with minimal fat concomitant with calcifications is an even rarer presentation. It is very difficult to differentiate a minimal-fat angiomyolipoma with calcifications from a renal cell carcinoma preoperatively. In such a circumstance, a well-planned partial nephrectomy may be optimal for the patient, regardless of the tumor size.
Publisher
Springer Science and Business Media LLC
Reference12 articles.
1. Helenon O, Merran S, Paraf F, Melki P, Correas JM, Chretien Y, Moreau JF: Unusual fat-containing tumors of the kidney: a diagnostic dilemma. Radiographics. 1997, 17 (1): 129-144.
2. Ozeki Y, Matsumoto K, Goto M, Hayashi M, Onitsuka A, Hirose M, Shimokawa K: A case of renal angiomyolipoma with bone formation. Nihon Geka Gakkai zasshi. 1988, 89 (3): 458-463.
3. Merran S, Vieillefond A, Peyromaure M, Dupuy C: Renal angiomyolipoma with calcification: CT-pathology correlation. Br J Radiol. 2004, 77 (921): 782-783. 10.1259/bjr/33776173.
4. Hammadeh MY: Calcification within angiomyolipoma. Radiographics. 1998, 18 (1): 4-
5. Deeths TM, Melson GL: Calcification in an angiomyolipoma: a case report. J Urol. 1975, 114 (4): 613-614.
Cited by
17 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献